Such decomposition is ambiguous, for instance, in one decomposition one could observe peak at 1,45kHz, in other decomposition of the same musical signal - peak will be not there.
Are we talking about the same thing? A transform of the signal into the frequency domain?
The key word is perception. We build the sound in our brains and look for patterns, it's quite reasonable to assume a combination of measurable phenomena create in our minds something which isn't there.
You are in the right direction. Your mistake is thinking that it is not governed by Physics.
Yes, it will depend on how you choose musical signal time domain for transform. Musical signal in non-periodic, and could be infinite in time. And one should cut time domain somehow.Are we talking about the same thing? A transform of the signal into the frequency domain?
You are in the right direction. Your mistake is thinking that it is not governed by Physics.
What's "it"?
Yes, so what? Frequency domain transform changes over time too, I don't see your point.Yes, it will depend on how you choose musical signal time domain for transform. Musical signal in non-periodic, and could be infinite in time. And one should cut time domain somehow.
Yes, so what? Frequency domain transform changes over time too, I don't see your point.
If musical signal is infinite in time? When and how to stop and to get final and repetitive transform? If to stop, it will be a MODEL situation, that would allow to suppose , that music is a periodical signal. It will be an approximation, generally speaking. ANY theory is an approximation to reality.
I think you are seeing a problem where one doesn't exist, the original signal can be derived from the frequency domain representation over the same time span.
What's "it"?
"We build the sound in our mind..." The way you describe the mechanism is not scientific enough. "a combination of measurable phenomena create in our minds something which isn't there." You may talk about 'illusion' but the problem is actually simpler than that. People are desperate that they tend to look beyond simple Physics.
I think you are seeing a problem where one doesn't exist,
Yes. Looking in the wrong direction...
To put it simple, system is no-more LTI after leaving the speakers.
To make it complicated - vibrations, heat, make the system non-LTI from source to ear.
Then the brain squeezes it all, and that's another story.

To make it complicated - vibrations, heat, make the system non-LTI from source to ear.
Then the brain squeezes it all, and that's another story.

Because Physics must make a step back. It just can't illustrate what's happening when the "wave" leaves speaker's membrane, bounces in a room, it's catched by the ears, and is subjected to humor, thinkings...well, the brain!You may talk about 'illusion' but the problem is actually simpler than that. People are desperate that they tend to look beyond simple Physics.

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If transistors don’t have a sound, why do people like Nelson Pass hoard particular types of transistors? Is it only for their IV characteristic curves, or is there more to it?
my guess - an artist develops an intuitive appreciation for the materials they work with, whether the brush of a painter or the clay of a modeler. We like to work with what has previously brought us success and to minimize the risk of an unknown ingredient. And, the artist knows that with time and work their familiarity with their materials will allow them to do even better work in the future.
In the tube arena, the late Sakuma-san was clear that he stuck with one brand of transformers and capacitors because he wanted to minimize the variables as he created his works of art.
If transistors don’t have a sound, why do people like Nelson Pass hoard particular types of transistors?
Before Nelson Pass, I don't see anyone make use of high capacitance mosfets for quality audio. Biased high, the capacitance is a non issue and damn you are left with its strength in transconductance. I think I prefer the sound of hot vmosfet than latfet or bipolar. At low bias I found latfet is detailed and natural than any bipolar and it doesn't invite as much intermodulation issue from being wide bandwidth. The only problem is its low transconductance. Using 3 pairs in parallel is very expensive. I thought I had a prototype that can potentially be the best amp (due to latfet strength and the weakness that seemed to be solved), but I never revisited the project.
More accurately, audiophiles think they have strong ability to...Here is the way I see it:
Audiophiles tend to have strong ability to perceive differences that is often unexplained by measurements.
More accurately, audiophiles think they have strong ability to...
Intelligence can be represented/measured by IQ, but there are a few people that are so stubborn and 'think' that everyone has equal intelligence. In listening, I found similar weird phenomenon. For a few people it is hard to 'accept' or believe that everyone does not have equal listening skill.
You may based your opinion and standing on the fact that many audiophiles will fail miserably in a blind ABX, which is true, but the phenomenon I'm talking about is real too.
What I've seen over last 16 years or so is, almost always the ones who brag about and / or post claims on forums about how they are able to hear the difference when they installed audiophile product x, y, z and say that those who can't hear it are either have hearing deficiency or the audio system isn't good enough, couldn't back up their claims with evidence. Of course they post such things because they think they can hear better, i.e. audiophile. I've seen cases which those audiophiles fail DBT despite their claim that they can hear the difference.
Do you know of actual cases which the audiophile (supposedly have strong ability to perceive differences that is often unexplained by measurements) pass DBT in detecting the difference that are measurably too small to be heard by average people?
Do you know of actual cases which the audiophile (supposedly have strong ability to perceive differences that is often unexplained by measurements) pass DBT in detecting the difference that are measurably too small to be heard by average people?
the ones who brag about and / or post claims on forums about how they are able to hear the difference ...
If it is bragging, act of superiority, of course the other side may feel being looked down upon. But that's not always the case. The fact that some have better hearing skill is equivalent with the fact that some have better electronics knowledge. Some people (I guess more than 50%) don't have issues with accepting this differences without feeling of being looked down upon.
and say that those who can't hear it are either have hearing deficiency or the audio system isn't good enough, couldn't back up their claims with evidence. Of course they post such things because they think they can hear better, i.e. audiophile.
There is also possibility that they post such a thing because they feel being attacked (delusional, audiophool, etc.). Nowadays, it might be an embarrassment to be regarded as an audiophile, don't you think?
Do you know of actual cases which the audiophile (supposedly have strong ability to perceive differences that is often unexplained by measurements) pass DBT in detecting the difference that are measurably too small to be heard by average people?
There is a 'claim' that ABX is too difficult, and that it cannot be used to conclude that null result is equivalent to no difference.
Of course you don't deny the fact that there are sites with listening tests and that the result forms an expected normal distribution. It is based on things like these, people set a threshold for audibility for human. But didn't the result also say that audibility thresholds are different for each individual? So, what is your thresholds? Can you believe that your threshold for THD is for example 1%? Of course you don't want to believe that because the consequence is that you should be okay using amp with 1% THD...?
More than a decade ago I concluded that even if you cannot differentiate 1% from 2% in an ABX, it doesn't mean that it doesn't affect you. You might be just not sensitive enough to feel the difference consciously.
Then there is this claim about 'measuring the wrong thing'. Yes, I know such cases. There is no case where people can hear and I can't. Many tests have been posted in this site where positive result was not shown, but I did it positively but I didn't post the result (I did print screen the result in case I need to show it but I have never had such needs). I have learnt that we are, measuring the wrong thing, meaning that we expect the difference in sound is due to amplifiers THD etc while it is not.
In general, it has been proven that there is nothing new under the sun. Anyone can come up with a 'theory' and the public will be divided. And that's the problem of the internet: 'nobody' knows which one is wrong and which one is right. And for sane people, it is not some kind of a bragging competition (which means...)
Yes I could see it on the web, I don't remember where, surely in YT. That must have been a magnificent show, nothing like the company of many people and perceive the human warmth ...... Here I lost to the symphony with MA and DB, but I was able to attend that of MA and GR. The four-handed concert was extraordinary. In an interval of the show I approached to look at the recording room of the event, and I asked some questions ..... only the microphones that hang from the zenith were the ones that recorded the event. But huge panels suspended at medium height gave the necessary rebound to the spectators to hear the real sound of the pianos. Surely it must be uploaded to YT 🙂 CCK CCKThey made also Martha Argerich live in Milan, piazza del Duomo![]()
I’m wondering what causes some solid-state amps to be more grainy in presentation than others.
I’m not referring to a defective amp sound. Rather, think vocals and how silky smooth vs. grainy they sound.
I ask because I have 3 good amps, two by Nelson and one vintage Pioneer M22, and they all have different levels of graininess. They all measure with incredibly low distortion <0.005% THD. The worst of the three has third harmonic at -118dB and higher harmonics are buried in the noise floor. It doesn’t seem to be harmonic distortion.
Could grainy sound be some character or degradation of transistors? capacitors? resistors? (rather than topology)
Some important notes
1. This is quest to understand the cause of a subjective phenomenon. Please do not turn this thread into an objective measurements vs. subjective observations debate, which can be had elsewhere.
2. Program material, etc. are not (notionally) at issue, since this is a comparison between amplifiers using the same program. Unless you think there is a specific interaction between amps and program material.
3. If you don't know what grainy sound is, just pass on this thread. Yes, it's difficult to define in precise terms (EDIT: Post #148 makes a good effort), but there's no utility in pointing out that it's hard to define.
the best amplifiers I have been listening too, regardless of speakers, were not grainy at all...
The best amps that I listened too, exceeded my expectations of what an amplifier could do...
The gain stage, feedback, phase, bias, became second stage, background...
they brought the strong points of the recordings as never before...
As soon as I could hear the cuts in the tapes, that the engineers could not hear themselves, I was impressed by the uttermost quality of this sound...
It was beyond criticisms, just too good to be accepted as a norm or common ground.
So... IMO of this conclusion, I never heard an amplifier with a grainy sound, never in the high end (top of line I mean)Pass/AudioResearch/Naim/Krell/AN/Rotel/Creek/ etc etc
Conclusion, you could have a defective unit maybe?
bla,bla,bla , parole, parole, parole
You say :
"It's like learning sex during the Victorian era: you arrive at the wedding night and there are many things you never imagined."
I would not have had that problem (or that pleasant surprise), I always had sex before marrying all my wives.
Here I am with all of them
Of The silicon transistor manual "SOT54"
Example of the statement of BC 559:
"It is mainly used in low noise input stages of tape recorders, high fidelity amplifiers and other audio frequency equipment"
But, type BC557 and BC558 are recommended for other applications.
That is, can we deduce that this "grainy sound" is due to a bad choice of the transistor or an inappropriate replacement?
I think so, because I never heard these problems on valve-fed equipment.
Point for me, many pears with apples mixed here.,,🙄
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I meant bragging as in showing off the product (nothing more than audio jewelry) they purchased and how good it sounds.If it is bragging, act of superiority, of course the other side may feel being looked down upon. But that's not always the case. The fact that some have better hearing skill is equivalent with the fact that some have better electronics knowledge. Some people (I guess more than 50%) don't have issues with accepting this differences without feeling of being looked down upon.
You mean they post such thing as a retaliation? That's news to me.There is also possibility that they post such a thing because they feel being attacked (delusional, audiophool, etc.).

Yes, by posters who are in audio business.There is a 'claim' that ABX is too difficult, and that it cannot be used to conclude that null result is equivalent to no difference.
What validation method you used to arrive to that conclusion?Of course you don't deny the fact that there are sites with listening tests and that the result forms an expected normal distribution. It is based on things like these, people set a threshold for audibility for human. But didn't the result also say that audibility thresholds are different for each individual? So, what is your thresholds? Can you believe that your threshold for THD is for example 1%? Of course you don't want to believe that because the consequence is that you should be okay using amp with 1% THD...?
More than a decade ago I concluded that even if you cannot differentiate 1% from 2% in an ABX, it doesn't mean that it doesn't affect you. You might be just not sensitive enough to feel the difference consciously.
Who do you mean we?Then there is this claim about 'measuring the wrong thing'. Yes, I know such cases. There is no case where people can hear and I can't. Many tests have been posted in this site where positive result was not shown, but I did it positively but I didn't post the result (I did print screen the result in case I need to show it but I have never had such needs). I have learnt that we are, measuring the wrong thing, meaning that we expect the difference in sound is due to amplifiers THD etc while it is not.
Nobody knows right and wrong in audio electronics? I wonder how you know that...In general, it has been proven that there is nothing new under the sun. Anyone can come up with a 'theory' and the public will be divided. And that's the problem of the internet: 'nobody' knows which one is wrong and which one is right. And for sane people, it is not some kind of a bragging competition (which means...)

What validation method you used to arrive to that conclusion?
Yes, I know, it was a hard call, a tall order. I learned from phenomena in life. When you have to choose either Pepsi or Coke in a mini-market, are you aware of your unconscious thinking? Is it true psychological or you think one has better taste than the other? There are many mineral/bottling water. Do you choose based on the cheapest price? I think that unconsciously people think that one has better taste than the other. Of course, mostly they will fail ABX test (but I have passed several times with no mistake). But, do they really unaffected by the taste difference? You can do the test for yourself (if in your house mineral water wasn't free of course). Try different brand and observe the relationship with the amount of consumption.
The industry. Those who do the standard measurements.Who do you mean we?
I wrote 'nobody'. It is not about general electronics, it is about things that you know has not been proven. Like things that you always ask for evidence.Nobody knows right and wrong in audio electronics? I wonder how you know that...![]()
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